Santiago do Cacém (European Portuguese pronunciation: [sɐ̃tiˈaɣu ðu kɐˈsɐ̃j] ⓘ) is a municipality in Setúbal District in Portugal.

mayor is Álvaro Beijinha, elected by the Unitary Democratic Coalition.

The municipal holiday is July 25.

Administratively, the municipality is divided into eight civil parishes (freguesias):[3] Santiago do Cacém is twinned with:

This Portugal location article is a stub.